Answer:
The CD player costs $296 and the Nike sneaker costs $148.
Explanation:
From the information given, you know that a CD player and a Nike sneaker together cost $ 444, which can be expressed as:
x+y=444, where
x is the cost of the CD player
y is the cost of the Nike sneaker
Also, you know that the price of the CD player is double the price of the sneaker, which can be expressed as:
x=2y
You can replace this formula x=2y in the first one and solve for y:
2y+y=444
3y=444
y=444/3
y=148
Finally, you can replace the value of y in x=2y to find the value of x:
x=2(148)
x=296
According to this, the answer is that the CD player costs $296 and the Nike sneaker costs $148.